package com.sbm.merge.多线程.collections;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;


/**
 *  ConcurrentHashMap
 *      1, put 流程
 *
 *
 */
public class ConcurrentHashMapDemo {


    public static void main(String[] args) {

        Map<String,Integer> map = new ConcurrentHashMap<>();

        map.put("k1",1);


        map.put("k2",2);



    }


}

